Question

calculați media aritmetică a numerelor:
$a = 3 \sqrt{3 \: } + 2$
$b = \sqrt[]{27} - 2$



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Answer 1

$a = 3 \sqrt{3 \: } + 2$

$b = \sqrt[]{27} - 2 = 3 \sqrt{3} - 2$

$m_{a} = \frac{a + b}{2} = \frac{3 \sqrt{3} + 2 + 3\sqrt{3} - 2 }{2} = \frac{6 \sqrt{3} }{2} = 3 \sqrt{3}$

Answer 2

a = 3v3 + 2
b = v27 - 2
Ma = 3v3 + 2 + 3v3 - 2
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2

Ma = 6v3 : 2 = 3v3